Tetrahedron housing structure



FIG. 1 is a perspective view of my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side view thereof with the left side elevational view thereof being a mirror image thereof;

FIG. 5 is a front elevational thereof; and,

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a tetrahedron housing structure, as shown and described. 